073
FZUS61 KBUF 311403
GLFLO

Open Lake Forecast for Lake Ontario
National Weather Service Buffalo NY
1003 AM EDT Fri Jul 31 2026

For waters beyond five nautical miles of shore on Lake Ontario

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...
High pressure averaging 30.0 inches will settle across the area this
afternoon, before sliding east and off the New England coast over
the weekend. A wavy cold front will then slowly push southeast
across the lake Sunday night and Monday, with another 30.1 inch high
then gradually building southeastward across the lake through the
middle of next week.

LOZ062-312100-
Lake Ontario open waters from the Niagara River to Hamlin Beach-
1003 AM EDT Fri Jul 31 2026

.THIS AFTERNOON...West winds less than 10 knots becoming
southwest. Waves 1 foot or less.
.TONIGHT...South winds 10 knots or less becoming southwest. Waves
1 foot or less.
.SATURDAY...Southwest winds 10 knots or less becoming east. Waves
1 foot or less.
.SATURDAY NIGHT...East winds 5 to 10 knots. A chance of showers
in the evening, then showers overnight. Waves 1 foot or less.
.SUNDAY...East winds 5 to 10 knots becoming northwest. Showers
with a chance of thunderstorms. Waves 1 foot or less.
.MONDAY...Northwest winds 10 knots or less. Waves 2 feet or less.
.TUESDAY...Northeast winds 5 to 10 knots becoming east. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ063>065-312100-
Lake Ontario open waters from Hamlin Beach to the Saint Lawrence
River-
1003 AM EDT Fri Jul 31 2026

.THIS AFTERNOON...West winds 5 to 10 knots. Waves 1 foot or less.
.TONIGHT...Southwest winds 10 knots or less becoming south. Waves
1 foot or less.
.SATURDAY...South winds 10 knots or less becoming east. Waves
1 foot or less.
.SATURDAY NIGHT...East winds 5 to 15 knots becoming southeast. A
chance of showers in the evening, then showers likely overnight.
Waves 1 foot or less.
.SUNDAY...Southeast winds 10 to 15 knots becoming southwest.
Showers with a chance of thunderstorms. Waves 2 feet or less.
.MONDAY...West winds 5 to 15 knots becoming northwest. A chance
of showers during the day. Waves 2 feet or less.
.TUESDAY...West winds 10 knots or less becoming southeast. Waves
1 foot or less.

Winds and waves higher in and near thunderstorms.

$$

LOZ061-312100-
MAFOR 3115/
ONTARIO WEST 1/2 12600 13400 12500 11400. Waves 1 foot or less.

ONTARIO EAST 1/2 12600 11500 14400 11400. Waves 1 foot or less.

$$